Spaces are removed from markdown lines followed by two spaces on a previous line

[kachkaev]

Prettier 2.0.1
Playground link

--parser markdown

Seems like this issue is caused by #7178, which fixes #6948

Input:

There are two spaces following each row with `a...d` below:

- a a  
   b b  
    c c  
   d d  
  e e

1.  a a a  
   b b b  
  c c c  
   d d d  
    e e e

Output:

There are two spaces following each row with `a...d` below:

- a a  
  bb  
  cc  
  dd  
  ee

1.  a a a  
    bbb  
    ccc  
    ddd  
    eee

Expected behavior:

There are two spaces following each row with `a...d` below:

- a a  
  b b  
  c c  
  d d  
  e e

1.  a a a  
    b b b  
    c c c  
    d d d  
    e e e

Meanwhile, a workaround is to use <br> instead of ·· for line breaks.

Seems like this issue only relates to lists. Not in lists though, there is the same leading space issue as reported in #6948

[alexander-akait]

Thanks

[thorn0]

Is this a regression in 2.0?

[kachkaev]

Yep, all was OK in 1.19 (before #7178)

[kachkaev]

@thorn0 if there is a planned 2.0.x release but we still don't have a proper fix, perhaps we could just revert #7178 for now and also remove a corresponding section in the blog post. That's minor compared to the impact this new bug has. For us, its a blocker for upgrading to v2, while #6948 is just a small imperfection.

cc @sasurau4, if you have time to look into fixing 🙏